Usage

Syntax

usage: java -Xms512m -Xmx2048m  -jar metamed-2024.11.jar [-d <dir>]
       [-ds <code>] [-e <file>] [-ef <format>] [-empty] 
       [-fs <rootdir> | -mem | -virt <auth>] [-g <name>] [-h] [-i <file>] 
       [-if <format>] [-list <file>] [-o <dir>] [-of <fmt>] 
       [-p <extractor:priority>] [-pm <file>] [-q <file>] [-r <file>] [-s] 
       [-tc <count>] [-tmm] [-v]

Options

-d,--input-data dir

Input data directory or file. The whole directory is processed recursively.

-ds,--data-source code

Set the data source name.

-e,--export file

Export the whole graph to a file.

-ef,--export-format format

File serialization format for an output RDF file.

-empty,--empty-graph

Empty the graph.

-fs,--graph-file-system rootdir

Graph is in-memory only, but it is automatically backed from/to file system root directory. You have to specify a root directory for graph. Graph is always backed to the root directory. You can use options for export (-e) and export format (-ef) which will duplicate output to an another serialization file format. Please be patient, the graph is written twice in that case.

-g,--graph name

Set the graph name. The graph name a mandatory option for all supported operations. (default is 'metamedGraph')

-h,--help

Print this message.

-i,--import file

Import RDF files(s) to the graph.

-if,--import-format format

Import serialization format for RDF files(s).

-list,--file-list file

List of input data files for (selective) processing in the file. Each file name (relative or absolute) path is on one line. An input data (-d) option can append additional files for processing.

-mem,--graph-in-memory

Graph is in-memory only and it is destroyed when application exits. (default) You can use export option (-e) which will output the graph to a RDF file with format (-ef) you need. It is useful e.g. for a conversion between two serialization formats.

-o,--output dir

Output directory. Query results will be stored there with an appropriate file extension based on an output format.

-of,--output-format fmt

Output format - csv, json, ...

-p,--priority extractor:priority

Extractor class priority. The syntax is extractor class name or code, colon, priority. Priority is a positive integer number. Default value is 0. It is possible to disable Extractor using priority value 'disabled'.

-pm,--prefix-map file

Export an application built-in prefix map into a text file.

-q,--query file

File or directory with files that contain SPARQL query. Prefixes are appended automatically to each query.

-r,--remove file

Remove statements from the graph. One statement per line. Subject, predicate and value are divided by a tabulator char only. Only URI out prefixes are allowed. Any content in s, p or o is possible when you use ? or $ char (before name).

-s,--size

Print graph size.

-tc,--thread-count count

Number of threads used for meta data extraction of input files. One thread is a default value.

-tmm,--thread-graphs-merge

Enable merging graphs when more threads are used. It is automatically enabled when running queries or removing any statements. It is more efficient work out merging when you are extracting meta data.

-v,--verbose

Verbose output.

-virt,--graph-virtuoso auth

Graph is in Virtuoso database. You have to specify a connection configuration property file.